The Teatro Municipal Carlos Gomes is one of the finest 19th-century theatres in the interior of São Paulo state. Built in the Italian neoclassical style and opened in 1850, it seats around 900 and still functions as the main venue for concerts, opera, and theatre performances in the city. The façade is pleasingly austere, and the interior has the horseshoe balconies and painted ceiling panels that the period demanded.
Guided tours of the interior run on certain mornings; check the theatre's website for the current schedule. The square in front — Praça Carlos Gomes — is shaded by large trees and is a reasonable place to sit with a coffee between errands. It's a small but pleasant public space in what is otherwise a fairly utilitarian city centre.